CN105712558A - Fully-automatic and continuous chemical nickel liquid waste treatment system - Google Patents
Fully-automatic and continuous chemical nickel liquid waste treatment system Download PDFInfo
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- CN105712558A CN105712558A CN201610131227.9A CN201610131227A CN105712558A CN 105712558 A CN105712558 A CN 105712558A CN 201610131227 A CN201610131227 A CN 201610131227A CN 105712558 A CN105712558 A CN 105712558A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
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Abstract
The invention provides a fully-automatic and continuous chemical nickel liquid waste treatment system. The fully-automatic and continuous chemical nickel liquid waste treatment system is characterized in that the chemical nickel liquid waste treatment system can conduct solid-liquid separation on chemical nickel liquid waste and comprises evaporation equipment, a cooling tower, heat conduction oil circulation equipment and an automated control unit; the evaporation equipment comprises a vapor-liquid separator, a feeding electric valve, an emptying valve, a first heating chamber, a second heating chamber, concentrated liquid discharge valves, a condenser, a water storage tank and a vacuum pump; in the work state, the first heating chamber and the second heating chamber work by turns and do not work simultaneously; the water storage tank is composed of a first tank body and a second tank body; the heat conduction oil circulation equipment comprises a heating groove and a heat conduction oil circulation pump; the automated control unit comprises a heat conduction oil heating control module, a temperature sensor, a feeding control module, a first sensor, a condensate water discharging control module and a second sensor. By means of the chemical nickel liquid waste treatment system, phosphorus, nickel and COD in chemical nickel liquid waste can be effectively removed.
Description
Technical field
The present invention relates to industrial wastes process field, be specifically related to the chemical nickel liquid waste treatment system of a kind of full-automatic serialization, the chemical nickel waste liquid that this chemical nickel liquid waste treatment system is particularly useful for process circuit plate processing industry, electroplating industry produces.
Background technology
Chemical nickel surface treatment is relatively broad in the use of circuit board industry and electroplating industry.In process of production, due to chemical nickel stock solution shelve of long duration after do not reach Production requirement cause discarding (being commonly called as aging) because there is chemical reaction, discarded chemical nickel coating bath concentrated nitric acid carries out foam washing to be produced again bubble groove in a large number and cleans waste liquid.In both waste liquids, pollutant levels are higher, and danger coefficient is big, and intractability is also big.These two kinds of waste liquids all contain a certain amount of nickel, but wherein nickel content is relatively low, it does not have the utilization of resources is worth；Chemical nickel waste liquid be mainly composed of the pollutant such as nickel sulfate, sodium hypophosphite, ammonia, organic acid, substantial amounts of phosphorus, nitrogen, high COD and a certain amount of heavy metal nickel create higher requirement to disposing, and containing substantial amounts of nitrate nitrogen in nitric acid washing trough waste liquid, cannot consume in a large number through conventional treatment way, as entered in waste water, then water environment can be caused great pollution.
Less currently for the process means of above-mentioned waste liquid through investigation, generally conventional method is chemical method, it is added dropwise in the waste water that concentration is relatively low by this high-concentration waste liquid in batches, by Fenton oxidation reaction, part oxidizable species is aoxidized, make nickel ion completely exposed, regulate pH with aqua calcis afterwards to be alkalescence, make nickel ion precipitate, adding polyacrylamide makes the precipitation of generation settle, mud is become through pressure filter filter pressing, becoming the solid waste without recovery value, supernatant enters biochemical system after overregulating pH.This type of method is the chemical treatment method that general enterprises is conventional, and this kind of Conventional waste water processing mode can not remove the pollution of nitrogen, phosphorus and COD in chemical nickel waste liquid completely；The harmful gas such as ammonia, acid volatilization also can be produced while there is chemical reaction；Produce a lot of mud not only dangerous, and occupy place, transport inconvenience；Additionally, chemical treatment requires have sewage disposal facility (such as medicine system, adjustment system, pump) and place, sludge press filtration system and deposit position, also to configure operator；Chemical treatment method there is also that chemical time is relatively slow, waste liquid deposits the outer transportation problem of committee.This type of waste liquid is included into solid waste by Xian Ge enterprise, entrusts and has the solidification disposal of waste enterprise of qualification to be disposed, and disposal costs is higher.Along with the minimizing day by day of social environment capacity, the specification day by day to solid waste disposal enterprise, the outer expense processed of committee increases day by day, and enterprise is difficult to bear the outer expense disposed of this waste liquid committee.
Summary of the invention
The present invention provides the chemical nickel liquid waste treatment system of a kind of full-automatic serialization, its object is to solve current chemical nickel liquid waste processing mode can not remove nitrogen in chemical nickel waste liquid, phosphorus, COD pollution and produce secondary pollution problem.
For reaching above-mentioned purpose, the technical solution used in the present invention is: the chemical nickel liquid waste treatment system of a kind of full-automatic serialization, chemical nickel waste liquid can be carried out solid-liquid separation by it, and chemical nickel liquid waste treatment system includes evaporation equipment, cooling tower, conduction oil recycle unit and Automated condtrol unit；
Described evaporation equipment includes vapour liquid separator, charging electrically operated valve, emptying valve, first adds hot cell, second adds hot cell, concentrated solution drain valve, condenser, water tank, vacuum pump；Described vapour liquid separator is one for the container of separate vapour and feed liquid, the bottom of vapour liquid separator is provided with a material inlet, material inlet is connected by pipeline with described charging electrically operated valve, the bottom of vapour liquid separator is provided with a material outlet, the pipeline of material outlet formula in parallel adds hot cell and the second bottom adding hot cell with described first respectively and is connected, the middle part of vapour liquid separator is provided with the first liquidometer and steam inlet, the top of vapour liquid separator is provided with the first steam (vapor) outlet, first steam (vapor) outlet is connected by the top of pipeline with described condenser, the top of vapour liquid separator is provided with drain, drain is communicated with emptying valve by pipeline, emptying valve is positioned at below drain, it is provided with Pressure gauge between drain and emptying valve；
Described first adds hot cell and second adds hot cell and is the container of tube shell type structure, first adds hot cell and second adds in the tube side in hot cell and has flowed through material, first adds hot cell and second adds in the shell side in hot cell and has flowed through conduction oil, described first adds hot cell and the second bottom adding hot cell is equipped with concentrated solution outlet, concentrated solution outlet can be in communication with the outside by described concentrated solution drain valve, first adds hot cell and the second bottom adding hot cell is equipped with heat conductive oil inlet, first adds hot cell and the second top adding hot cell is equipped with the first conduction oil outlet and the second steam (vapor) outlet, second steam (vapor) outlet is connected with described steam inlet by pipeline；Under in working order, described first adds hot cell and second adds in turn and the asynchronously work of both hot cells；
Described cooling tower is one using water as circulating coolant the device carrying Cooling Water for described condenser, described condenser is the container of a tube shell type structure, steam becomes condensed fluid after condenser cools down, steam and condensed fluid has been flowed through in the tube side of condenser, cooling water has been flowed through in the shell side of condenser, the top of condenser is provided with coolant outlet, coolant outlet is connected with described cooling tower by pipeline, the bottom of condenser is provided with cooling water inlet, cooling water inlet is connected with described cooling tower by pipeline and is provided with spray pump between cooling water inlet and cooling tower；Described water tank is made up of the first tank body and the second tank body, first tank body is seated on the second tank body, the second balanced valve and the second tank body that first tank body is provided with pipeline by pipeline connect, the top of the first tank body connects with the bottom of described condenser, the top of the first tank body connects with described vacuum pump with the pipeline of the top of the second tank body formula in parallel, the first balanced valve it is provided with between second tank body and vacuum pump, the top of the second tank body is provided with the 3rd balanced valve being in communication with the outside, the middle part of the second tank body is provided with the second liquidometer, the bottom of the second tank body is provided with mean for the outlet valve of condensate discharge；Described first balanced valve, the second balanced valve, the 3rd balanced valve and outlet valve are electrically operated valve；
Described conduction oil recycle unit includes heating tank, heat conduction oil circulating pump, filling pump；Described filling pump is connected with heat conduction oil circulating pump by pipeline；There is in described heating tank one or more heating rod, conduction oil is heated by heating rod in heating tank, heat conduction oil circulating pump is connected with heating tank by pipeline, connectivity part is positioned at the bottom of heating tank, the top of described heating tank is provided with the second conduction oil outlet, and the second conduction oil outlet adds hot cell by pipeline with described first and the second heat conductive oil inlet adding hot cell connects；Described first add hot cell add with second hot cell first conduction oil outlet connected with described heat conduction oil circulating pump by pipeline；
Described Automated condtrol unit includes heat-conducting oil heating and controls module, temperature sensor, feed control module, first sensor, condensed water elimination control module, the second sensor；The signal input part that the signal output part of described temperature sensor controls module with heat-conducting oil heating electrically connects, and heat-conducting oil heating controls module and according to the setting of inlet oil temperature and returning-oil temperature, the heating-up temperature in described heating tank is controlled；The signal input part of described first sensor electrically connects with the signal output part of described first liquidometer, and the signal output part of first sensor electrically connects with the signal input part of described feed control module, and feed control module controls the switch of described charging electrically operated valve；The signal input part of described second sensor electrically connects with the signal output part of described second liquidometer, the signal input part that the signal output part of the second sensor controls module with described condensed water elimination electrically connects, and condensed water elimination controls module and controls the switch of described first balanced valve, the second balanced valve, the 3rd balanced valve and outlet valve.
Relevant content in technique scheme is explained as follows:
1, in such scheme, preferably scheme be described heating tank be arranged over a top petrol tank, top petrol tank is provided with high-order oil-in, high-order oil-out and air vent, high-order oil-in is connected with described filling pump by pipeline, high-order oil-out is connected with described conduction oil recycle unit by pipeline, high-order oil-in is arranged on the bottom of top petrol tank, and high-order oil-out and air vent are arranged on the top of top petrol tank.Safety from the viewpoint of described conduction oil recycle unit, it is arranged over a top petrol tank at heating tank, because ensureing that heating tank heating tank in the running is completely filled with by conduction oil, when top petrol tank has been charged conduction oil, then ensure that in heating tank and be filled conduction oil, additionally, conduction oil in top petrol tank also can as the supplementing of conduction oil in heating tank.
2, in such scheme, described first add hot cell, second add hot cell and condenser belongs to heat exchanger.Heat exchanger is the equipment that the partial heat of hot fluid passes to cold flow body, also known as heat exchanger.Heat exchanger is the common apparatus of chemical industry, oil, power, food and other many industrial departments, can be divided into heater, condenser, cooler, vaporizer, reboiler etc. according to purposes difference.And shell-and-tube heat exchanger is to occupy leading position, very typical a kind of heat exchanger, it is mainly made up of housing, tube bank, tube sheet, hydraulic barrier and end socket etc., a kind of fluid becomes tube side at its stroke of Bottomhole pressure, one other fluid becomes shell side at outer its stroke that flows of pipe, and the wall of tube bank is heat-transfer area.The concrete structure design of shell-and-tube heat exchanger belongs to prior art, and the first of the present invention adds hot cell, second adds hot cell and condenser has only to the structural design adopting shell-and-tube heat exchanger common in prior art to reach heating or the effect of condensation.
Design feature of the present invention is: for current chemical nickel liquid waste processing mode can not remove nitrogen in chemical nickel waste liquid, phosphorus, COD pollution and produce secondary pollution problem, chemical nickel waste liquid can be carried out solid-liquid separation by the chemical nickel liquid waste treatment system adopting the full-automatic serialization of low-temperature negative-pressure concentration technology and the present invention, nickeliferous solid reclaims, realize the resource recycling of nickel, thoroughly solve the process problem of chemical nickel waste liquid.The chemical nickel liquid waste treatment system of the present invention mainly utilizes the boiling point difference of each material in chemical nickel waste liquid, the amount of ammonia nitrogen in condensed fluid is controlled according to regulating pH, low-temp low-pressure controls the amount of condensed fluid COD, the chemical constituent relative boiling point constituted because of nickel, phosphorus, this type of material of nitrate anion again is higher, will not evaporate away at low temperatures, hereby it is ensured that the discharge quality of condensed water, control heating-up temperature and control thickening efficiency.First, opening chemical nickel liquid waste treatment system, after this system enters and stablizes vacuum state, charging, chemical nickel waste liquid is drawn into vapour liquid separator through vacuum, is flowed into first then through the material outlet bottom vapour liquid separator and adds hot cell or second and add in hot cell.Then, control first adds hot cell and second and heats indoor heating-up temperature within the specific limits, feed liquid adds after hot cell and second adds and be heated to boiling in the tube side in hot cell first, part vaporization, heat energy is made to convert the kinetic energy moved upward to, simultaneously because the material generation severe of gas-liquid mixture and not boiling is poor in heating tube bundle, create the Natural Circulation of material.Material is heated the more, and its circulation rate is faster.Circulation rate is faster, and concentration speed is faster.To be concentrated put in place after, concentrated solution directly adds hot cell from first or the second bottom discharge adding hot cell is gone out.And the gas evaporated rises to vapour liquid separator top, become after condensing then through condenser and enter water tank after condensed fluid, wherein, the first tank body in water tank function as condensed fluid from condenser base falls to water tank a cushion space.Condensed fluid can be directly discharged to Sewage Disposal.
And the chemical nickel liquid waste treatment system of the present invention can accomplish that full-automatic serialization runs.In order to make, system is not out of service, serialization runs, and therefore design two adds hot cell and switches over, it is determined as first adds hot cell and second adds hot cell, two add hot cell in turn, different time work, share a vapour liquid separator.When first add hot cell be concentrated into a certain degree and concentration must be stopped time, then enable second and add hot cell.
Described Automated condtrol unit includes heat-conducting oil heating and controls module, temperature sensor, feed control module, first sensor, condensed water elimination control module, the second sensor.Heat-conducting oil heating controls module and according to the setting of inlet oil temperature and returning-oil temperature, the heating-up temperature in heating tank is controlled.
Feed control module controls the switch of charging electrically operated valve, vacuum self-priming is passed through in charging, inlet amount higher limit and inlet amount lower limit are controlled by differential pressure type level gauge, when inlet amount reaches to arrange the upper limit, first sensor provides differential pressure signal and becomes the signal of telecommunication to charging electrically operated valve so that it is close；When in system, the amount of material reaches to arrange inlet amount lower limit, first sensor provides differential pressure signal and becomes the signal of telecommunication to charging electrically operated valve so that it is open.
Condensed water elimination controls module and controls the switch of described first balanced valve, the second balanced valve, the 3rd balanced valve and outlet valve.Condensed fluid water level is controlled according to differential pressure type level gauge, liquid level differential pressure signal is become the signal of telecommunication and is delivered to each electrically operated valve by the second sensor, when in water tank, liquid level reaches higher limit, first balanced valve and the second balanced valve are closed, 3rd balanced valve and outlet valve are opened, reach automatic and vacuum system isolation emptying and discharge condensed fluid, when in water tank, liquid level reaches lower limit, 3rd balanced valve and outlet valve are closed, then the first balanced valve and the second balanced valve are opened, make to be connected with vacuum system, continue concentration.
The concrete operations of chemical nickel liquid waste treatment system require:
(1) chemical nickel liquid waste treatment system is started: close the valve in evaporation equipment, press green startup button, first balanced valve, the second balanced valve, the 3rd balanced valve and outlet valve are adjusted to automatically, open cooling water valve, opening spray pump and inject cooling water in condenser, subsequent start-up vacuum pump, after equipment enters and stablizes vacuum state, being adjusted to by charging electrically operated valve and be automatically fed to setting position, chemical nickel waste liquid is drawn in vapour liquid separator through vacuum；
Open cooling blower and open heat conduction oil circulating pump, setting heating-up temperature, heat transfer oil electric heating switch is adjusted to automatically, adding hot cell or the second heating indoor by conduction oil first and chemical nickel feed liquid is heated.Feed liquid reaches to start after boiling evaporation through heating.
(2) evaporating concentration process: evaporation equipment is fully automatic operation, is auto state including the first balanced valve, the second balanced valve, the 3rd balanced valve, outlet valve, charging electrically operated valve.The liquid level that can be observed in evaporation process in vapour liquid separator constantly declines along with the carrying out of evaporation, when, after evaporation certain time, when in vapour liquid separator, liquid level is too low, charging electrically operated valve automatically opens up supplementary material liquid.The gas that evaporates is condensed is recycled to water tank, and when reaching certain liquid level in water tank, automatic-discharging condenses.
(3) when stopping concentration, first close conduction oil recycle unit, turn off vacuum pump, first balanced valve, the second balanced valve, the 3rd balanced valve, outlet valve are adjusted to manually, slowly open in atmospheric valve goalkeeper's equipment emptying to atmospheric pressure state, while hot concentrated solution is discharged from concentrated solution outlet, start discharging, complete once concentration.After concentration, close all valves, the first balanced valve, the second balanced valve, the 3rd balanced valve, outlet valve are adjusted to automatically, open vacuum pump, after equipment enters and stablizes vacuum state, charging electrically operated valve is adjusted to automatically, carries out charging.If continuing concentration, then open electrical heating switch, enter automatic evaporation process.If stopping concentration, enter shutdown procedures.
(4) shutdown: after chemical nickel liquid waste treatment system completes again feed step, all electrically operated valves are adjusted to manual halted state, when conduction oil temperature is down to below uniform temperature, close vacuum pump, and slowly open emptying valve, make equipment enter atmospheric pressure state.Close cooling blower, spray pump, conduction oil oil circulating pump, close all valves, deenergization, lock electric control box, arrange scene.
(5) safeguard: tap water can be added and be carried out pipeline and equipment.
Beneficial effects of the present invention:
(1) when using this chemical nickel liquid waste treatment system to process chemical nickel waste liquid, it is not necessary to any medicament of extra interpolation, and chemical method cannot can be processed nitric acid washing trough waste liquid up to standard and add in chemical nickel waste liquid.While concentrating chemical nickel waste liquid, also consumes nitric acid bubble groove and clean waste liquid.
(2) this chemical nickel liquid waste treatment system is vacuum tightness system, thus produces without gas with contaminated air, and concentrated solution also has no irritating odor, and namely solidifies and become jelly after cooling.
(3) this chemical nickel liquid waste treatment system is vessels not under pressure, and heating-up temperature is not high, and therefore safety coefficient is higher.
(4) handling of chemical nickel waste liquid is about the 1/3 of original handling, greatly reduces business processes cost.
(5) for also having the former water of chemical nickel waste liquid of high phosphorus, nitrogen, nickel and the Organic Pollution factor, after handled by through this chemical nickel liquid waste treatment system, condensation of water can reach: total phosphorus≤0.5mg/L, total nickel≤0.1mg/L, CODCr≤100mg/L, ammonia nitrogen≤8mg/L, total nitrogen≤20mg/L, substantially without phosphorus, nickel in condensed fluid, COD value is very low, and nitrogen content is also very low, this kind of water reaches three grades of discharge standards of sewage, is substantially reduced the pressure to environment.
(6) concentrating spent liquor produced is about 1/10th of original volume, forms solid matter without mobility, store transport more convenient, take up an area less after cooling.And because in concentrated solution, nickel content is original chemical nickel liquid waste concentration more than ten times, nickel ion concentration is higher, it is possible to carry out metal smelt, has recovery value.
(7) firing equipment in this chemical nickel liquid waste treatment system adopts conduction oil recycle unit, employing heat-conducting oil heating is heated evenly, and heating-up temperature is stable, makes heating-up temperature maintain a relatively constant temperature in scope, the stability of whole system is played vital effect.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation one of the chemical nickel liquid waste treatment system of the present invention；
Accompanying drawing 2 is the structural representation two of the chemical nickel liquid waste treatment system of the present invention, and wherein, the A point in accompanying drawing 1 is same point with the A ' point in accompanying drawing 2, and accompanying drawing 1 and accompanying drawing 2 collectively form a complete structural representation.
In the figures above: 1, cooling tower；2, filling pump；3, vapour liquid separator；4, charging electrically operated valve；5, emptying valve；6, first adds hot cell；7, second adds hot cell；8, concentrated solution drain valve；9, condenser；10, water tank；11, vacuum pump；12, material inlet；13, material outlet；14, the first liquidometer；15, steam inlet；16, the first steam (vapor) outlet；17, drain；18, concentrated solution outlet；19, heat conductive oil inlet；20, the first conduction oil outlet；21, the second steam (vapor) outlet；22, coolant outlet；23, cooling water inlet；24, spray pump；25, the first tank body；26, the second tank body；27, the first balanced valve；28, the second balanced valve；29, the 3rd balanced valve；30, outlet valve；31, the second liquidometer；32, heating tank；33, heat conduction oil circulating pump；34, the second conduction oil outlet；35, top petrol tank；36, high-order oil-in；37, high-order oil-out；38, air vent；39, cooling water valve；40, tap water inlets；41, effusion meter.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment: the chemical nickel liquid waste treatment system of a kind of full-automatic serialization
Shown in accompanying drawing 1, chemical nickel waste liquid can be carried out solid-liquid separation by this chemical nickel liquid waste treatment system, and chemical nickel liquid waste treatment system includes evaporation equipment, cooling tower 1, conduction oil recycle unit and Automated condtrol unit；
Described evaporation equipment includes vapour liquid separator 3, charging electrically operated valve 4, emptying valve 5, first adds hot cell 6, second adds hot cell 7, concentrated solution drain valve 8, condenser 9, water tank 10, vacuum pump 11；Described vapour liquid separator 3 is one for the container of separate vapour and feed liquid, the bottom of vapour liquid separator 3 is provided with a material inlet 12, material inlet 12 is connected by pipeline with described charging electrically operated valve 4, the bottom of vapour liquid separator 3 is provided with a material outlet 13, the pipeline of material outlet 13 formula in parallel adds hot cell 6 and the second bottom adding hot cell 7 with described first respectively and is connected, the middle part of vapour liquid separator 3 is provided with the first liquidometer 14 and steam inlet 15, the top of vapour liquid separator 3 is provided with the first steam (vapor) outlet 16, first steam (vapor) outlet 16 is connected by the top of pipeline with described condenser 9, the top of vapour liquid separator 3 is provided with drain 17, drain 17 is communicated with emptying valve 5 by pipeline, emptying valve 5 is positioned at below drain 17, it is provided with Pressure gauge between drain 17 and emptying valve 5；
Described first adds hot cell 6 and second adds hot cell 7 and is the container of tube shell type structure, first adds hot cell 6 and second adds in the tube side in hot cell 7 and has flowed through material, first adds hot cell 6 and second adds in the shell side in hot cell 7 and has flowed through conduction oil, described first adds hot cell 6 and the second bottom adding hot cell 7 is equipped with concentrated solution outlet 18, concentrated solution outlet 18 can pass through described concentrated solution drain valve 8 and be in communication with the outside, first adds hot cell 6 and the second bottom adding hot cell 7 is equipped with heat conductive oil inlet 19, first adds hot cell 6 and the second top adding hot cell 7 is equipped with the first conduction oil outlet 20 and the second steam (vapor) outlet 21, the pipeline of the second steam (vapor) outlet 21 formula in parallel connects with described steam inlet 15；Under in working order, described first adds hot cell 6 and second adds in turn and the asynchronously work of both hot cells 7；
Described cooling tower 1 is one using water as circulating coolant the device carrying Cooling Water for described condenser, described condenser 9 is the container of a tube shell type structure, steam becomes condensed fluid after condenser 9 cools down, steam and condensed fluid has been flowed through in the tube side of condenser 9, cooling water has been flowed through in the shell side of condenser 9, the top of condenser 9 is provided with coolant outlet 22, coolant outlet 22 is connected with described cooling tower 1 by pipeline, the bottom of condenser is provided with cooling water inlet 23, cooling water inlet 23 is connected with described cooling tower 1 by pipeline and is provided with spray pump 24 between cooling water inlet 23 and cooling tower 1；Described water tank 10 is made up of the first tank body 25 and the second tank body 26, first tank body 25 is seated on the second tank body 26, the second balanced valve 28 that first tank body 25 is provided with pipeline by pipeline connects with the second tank body 26, the top of the first tank body 25 connects with the bottom of described condenser 9, the top of the first tank body 25 connects with described vacuum pump 11 with the pipeline of the top formula in parallel of the second tank body 26, the first balanced valve 27 it is provided with between second tank body 26 and vacuum pump 11, the top of the second tank body 26 is provided with the 3rd balanced valve 29 being in communication with the outside, the middle part of the second tank body 28 is provided with the second liquidometer 31, the bottom of the second tank body 26 is provided with mean for the outlet valve 30 of condensate discharge；Described first balanced valve the 27, second balanced valve the 28, the 3rd balanced valve 29 and outlet valve 30 are electrically operated valve；
Described conduction oil recycle unit includes heating tank 32, heat conduction oil circulating pump 33, filling pump 2；Described filling pump 2 is connected with heat conduction oil circulating pump 33 by pipeline；In described heating tank 32, there is one or more heating rod, conduction oil is heated by heating rod in heating tank 32, heat conduction oil circulating pump 33 is connected with heating tank 32 by pipeline, connectivity part is positioned at the bottom of heating tank 32, the top of described heating tank 32 is provided with the second conduction oil outlet 34, and the pipeline of the second conduction oil outlet 34 formula in parallel adds hot cell 6 and second respectively and adds the heat conductive oil inlet 19 in hot cell 7 and connect with described first；Described first adds hot cell 6 is added the first conduction oil outlet 20 in hot cell 7 and is connected with described heat conduction oil circulating pump 33 by pipeline with second；
Described Automated condtrol unit includes heat-conducting oil heating and controls module, temperature sensor, feed control module, first sensor, condensate discharge control module, the second sensor；The signal input part that the signal output part of described temperature sensor controls module with heat-conducting oil heating electrically connects, and heat-conducting oil heating controls module and according to the setting of inlet oil temperature and returning-oil temperature, the heating-up temperature in described heating tank 32 is controlled；The signal input part of described first sensor electrically connects with the signal output part of described first liquidometer 14, the signal output part of first sensor electrically connects with the signal input part of described feed control module, and feed control module controls the switch of described charging electrically operated valve 4；The signal input part of described second sensor electrically connects with the signal output part of described second liquidometer 31, the signal input part that the signal output part of the second sensor controls module with described condensate discharge electrically connects, and condensate discharge controls module and controls the switch of described first balanced valve the 27, second balanced valve the 28, the 3rd balanced valve 29 and outlet valve 30.
Described heating tank 32 be arranged over a top petrol tank 35, top petrol tank 35 is provided with high-order oil-in 36, high-order oil-out 37 and air vent 38, high-order oil-in 36 is connected with described filling pump 2 by pipeline, high-order oil-out 37 is connected with described conduction oil recycle unit by pipeline, high-order oil-in 36 is arranged on the bottom of top petrol tank 35, and high-order oil-out 37 and air vent 38 are arranged on the top of top petrol tank 35.
The pipeline at described charging electrically operated valve 4 place also can be provided with flow meters 41, be used for recording charging treating capacity, instruct by setting feed rate, control the discharge time.
The concrete operations of chemical nickel liquid waste treatment system require:
(1) chemical nickel liquid waste treatment system is started: close the valve in evaporation equipment, press green startup button, first balanced valve the 27, second balanced valve the 28, the 3rd balanced valve 29 and outlet valve 30 are adjusted to automatically, open cooling water valve 39, open spray pump 24 in condenser 9, inject cooling water, subsequent start-up vacuum pump 11, after equipment enters and stablizes vacuum state, being adjusted to by charging electrically operated valve 4 and be automatically fed to setting position, chemical nickel waste liquid is drawn in vapour liquid separator 3 through vacuum；
Open cooling blower and open heat conduction oil circulating pump 33, setting heating-up temperature, heat transfer oil electric heating switch is adjusted to automatically, adding hot cell 6 or the second by conduction oil first and add in hot cell 7 chemical nickel feed liquid is heated.Feed liquid reaches to start after boiling evaporation through heating.
In order to make system not out of service, therefore design two adds hot cell and switches over, it is determined as first adds hot cell 6 and second adds hot cell 7, two add hot cell different in turn time work, share a vapour liquid separator.When first add hot cell be concentrated into a certain degree and must stop concentration time, enable second add hot cell 7 proceed concentration.
(2) evaporating concentration process: evaporation equipment is fully automatic operation, is auto state including first balanced valve the 27, second balanced valve the 28, the 3rd balanced valve 29, outlet valve 30, charging electrically operated valve 4.The liquid level that can be observed in evaporation process in vapour liquid separator 3 constantly declines along with the carrying out of evaporation, when, after evaporation certain time, when in vapour liquid separator 3, liquid level is too low, charging electrically operated valve 4 automatically opens up supplementary material liquid.The gas that evaporates is condensed is recycled to water tank 10, and when reaching certain liquid level in water tank 10, automatic-discharging condenses.
(3) when stopping concentration, first close conduction oil recycle unit, turn off vacuum pump 11, first balanced valve the 27, second balanced valve the 28, the 3rd balanced valve 29, outlet valve 30 are adjusted to manually, slowly open emptying valve 5 by emptying in equipment to atmospheric pressure state, while hot concentrated solution is discharged from concentrated solution outlet 18, start discharging, complete once concentration.After concentration, close all valves, first balanced valve the 27, second balanced valve the 28, the 3rd balanced valve 29, outlet valve 30 are adjusted to automatically, open vacuum pump 11, after equipment enters and stablizes vacuum state, charging electrically operated valve 4 is adjusted to automatically, carries out charging.If continuing concentration, then open electrical heating switch, enter automatic evaporation process.If stopping concentration, enter shutdown procedures.
(4) shutdown: after chemical nickel liquid waste treatment system completes again feed step, all electrically operated valves are adjusted to manual halted state, when conduction oil temperature is down to below uniform temperature, close vacuum pump 11, and slowly open emptying valve 5, make equipment enter atmospheric pressure state.Close cooling blower, spray pump 24, conduction oil oil circulating pump 33, close all valves, deenergization, lock electric control box, arrange scene.
(5) safeguard: can adding tap water and be carried out pipeline and equipment, the label 40 in accompanying drawing 1 represents tap water inlets.
Above-described embodiment only for technology design and the feature of the present invention are described, its object is to allow person skilled in the art will appreciate that present disclosure and to implement according to this, can not limit the scope of the invention with this.All equivalences made according to spirit of the invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (2)
1. the chemical nickel liquid waste treatment system of a full-automatic serialization, it is characterized in that: chemical nickel waste liquid can be carried out solid-liquid separation by this chemical nickel liquid waste treatment system, and chemical nickel liquid waste treatment system includes evaporation equipment, cooling tower (1), conduction oil recycle unit and Automated condtrol unit；
Described evaporation equipment includes vapour liquid separator (3), charging electrically operated valve (4), emptying valve (5), first adds hot cell (6), second adds hot cell (7), concentrated solution drain valve (8), condenser (9), water tank (10), vacuum pump (11)；Described vapour liquid separator (3) is one for the container of separate vapour and feed liquid, the bottom of vapour liquid separator (3) is provided with a material inlet (12), material inlet (12) is connected by pipeline with described charging electrically operated valve (4), the bottom of vapour liquid separator (3) is provided with a material outlet (13), the pipeline of material outlet (13) formula in parallel adds hot cell (6) and second respectively and adds the bottom in hot cell (7) and be connected with described first, the middle part of vapour liquid separator (3) is provided with the first liquidometer (14) and steam inlet (15), the top of vapour liquid separator (3) is provided with the first steam (vapor) outlet (16), first steam (vapor) outlet (16) is connected by the top of pipeline with described condenser (9), the top of vapour liquid separator (3) is provided with drain (17), drain (17) is communicated with emptying valve (5) by pipeline, emptying valve (5) is positioned at drain (17) lower section, it is provided with Pressure gauge between drain (17) and emptying valve (5)；
Described first adds hot cell (6) and second adds hot cell (7) and is the container of tube shell type structure, first adds hot cell (6) and second adds in the tube side of hot cell (7) and has flowed through material, first adds hot cell (6) and second adds in the shell side of hot cell (7) and has flowed through conduction oil, described first adds hot cell (6) and second adds the bottom in hot cell (7) and is equipped with concentrated solution outlet (18), concentrated solution outlet (18) can pass through described concentrated solution drain valve (8) and be in communication with the outside, first adds hot cell (6) and second adds the bottom in hot cell (7) and is equipped with heat conductive oil inlet (19), first adds hot cell (6) and second adds the top in hot cell (7) and is equipped with the first conduction oil outlet (20) and the second steam (vapor) outlet (21), second steam (vapor) outlet (21) is connected with described steam inlet (15) by pipeline；Under in working order, described first adds hot cell (6) and second adds hot cell (7) the two in turn and asynchronously works；
Described cooling tower (1) is one using water as circulating coolant the device carrying Cooling Water for described condenser (9), described condenser (9) is the container of a tube shell type structure, steam becomes condensed fluid after condenser (9) cools down, steam and condensed fluid has been flowed through in the tube side of condenser (9), cooling water has been flowed through in the shell side of condenser (9), the top of condenser (9) is provided with coolant outlet (22), coolant outlet (22) is connected with described cooling tower (1) by pipeline, the bottom of condenser is provided with cooling water inlet (23), cooling water inlet (23) is connected with described cooling tower (1) by pipeline and is provided with spray pump (24) between cooling water inlet (23) and cooling tower (1)；Described water tank (10) is made up of the first tank body (25) and the second tank body (26), first tank body (25) is seated on the second tank body (26), the second balanced valve (28) that first tank body (25) is provided with pipeline by pipeline connects with the second tank body (26), the top of the first tank body (25) connects with the bottom of described condenser (9), the top of the first tank body (25) connects with described vacuum pump (11) with the pipeline of the top formula in parallel of the second tank body (26), the first balanced valve (27) it is provided with between second tank body (26) and vacuum pump (11), the top of the second tank body (26) is provided with the 3rd balanced valve (29) being in communication with the outside, the middle part of the second tank body (28) is provided with the second liquidometer (31), the bottom of the second tank body (26) is provided with mean for the outlet valve (30) of condensate discharge；Described first balanced valve (27), the second balanced valve (28), the 3rd balanced valve (29) and outlet valve (30) are electrically operated valve；
Described conduction oil recycle unit includes heating tank (32), heat conduction oil circulating pump (33), filling pump (2)；Described filling pump (2) is connected with heat conduction oil circulating pump (33) by pipeline；Described heating tank has one or more heating rod in (32), conduction oil is heated by heating rod in heating tank (32), heat conduction oil circulating pump (33) is connected with heating tank (32) by pipeline, connectivity part is positioned at the bottom of heating tank (32), the top of described heating tank (32) is provided with the second conduction oil outlet (34), and the second conduction oil outlet (34) adds hot cell (6) and second by pipeline and adds the heat conductive oil inlet (19) of hot cell (7) and connect with described first；Described first add hot cell (6) add with second hot cell (7) first conduction oil outlet (20) connected with described heat conduction oil circulating pump (33) by pipeline；
Described Automated condtrol unit includes heat-conducting oil heating and controls module, temperature sensor, feed control module, first sensor, condensate discharge control module, the second sensor；The signal input part that the signal output part of described temperature sensor controls module with heat-conducting oil heating electrically connects, and heat-conducting oil heating controls module and according to the setting of inlet oil temperature and returning-oil temperature, the heating-up temperature in described heating tank (32) is controlled；The signal input part of described first sensor electrically connects with the signal output part of described first liquidometer (14), the signal output part of first sensor electrically connects with the signal input part of described feed control module, and feed control module controls the switch of described charging electrically operated valve (4)；The signal input part of described second sensor electrically connects with the signal output part of described second liquidometer (31), the signal input part that the signal output part of the second sensor controls module with described condensate discharge electrically connects, and condensate discharge controls module and controls the switch of described first balanced valve (27), the second balanced valve (28), the 3rd balanced valve (29) and outlet valve (30).
2. the chemical nickel liquid waste treatment system of a kind of full-automatic serialization according to claim 1, it is characterized in that: described heating tank (32) be arranged over a top petrol tank (35), top petrol tank (35) is provided with high-order oil-in (36), high-order oil-out (37) and air vent (38), high-order oil-in (36) is connected with described filling pump (2) by pipeline, high-order oil-out (37) is connected with described conduction oil recycle unit by pipeline, high-order oil-in (36) is arranged on the bottom of top petrol tank (35), high-order oil-out (37) and air vent (38) are arranged on the top of top petrol tank (35).
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Cited By (1)
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